WASHINGTON — Sen. John McCain’s funeral Saturday had the feel and gravity of the memorial for a head of state as three former presidents and a who’s who of Washington and the world gathered at the National Cathedral for his service.

McCain's hearse arrived at the cathedral shortly before 9:30 as bells tolled for the centerpiece of the four-day event where speakers honored his life as war hero, prisoner, lion of the Senate and exemplar of values of duty to his country.

Family and friends, political rivals and allies, recalled McCain's remarkable life and commitment to public service. They also noted the coarse nature of today's political debate and contrasted that to how McCain relished a good fight but stood for more.

“We gather here to mourn the passing of American greatness, the real thing, not cheap rhetoric from men who will never come near the sacrifice he gave so willingly, nor the opportunistic appropriation of those who lived lives of comfort and privilege while he suffered and served," she said. "He was a great fire who burned bright. In the past few days my family and I have heard from so many of those Americans who stood in the warmth and light of his fire."

Former President Barack Obama speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais)(Photo: Pablo Martinez Monsivais, AP)

“We come to celebrate an extraordinary man, a warrior, a statesman, a patriot, who embodied so much that is best in America,” Obama said.

Obama referred to the nature of today's political debate and suggested that it was unworthy of McCain.

"So much of our politics our public life, our public discourse can seem small, and mean, and petty, trafficking in bombast and insult and phony controversies and manufactured outrage," Obama said. "It’s a politics that pretends to be brave and tough but in fact is born of fear. John called on us to be bigger than that. He called on us to be better than that."

Former President George W. Bush speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais)(Photo: Pablo Martinez Monsivais, AP)

“Wherever John passed throughout the world people immediately knew there was a leader in their midst,” he said.

Former Sen. Joe Lieberman, I-Conn. and 2000 vice presidential candidate, and close friend, recalled McCain's love of laughter and acceptance of religious and cultural differences. Henry Kissinger, the secretary of State in the Nixon and Ford administrations, said McCain believed in American military strength but also its compassion and engagement in the world.

Former President Bill Clinton and former secretary of State Hillary Clinton joined the roster of the most senior former and current officials. Former Vice Presidents Joe Biden, Dick Cheney and Al Gore were also present.

Bush was McCain's rival in the 2000 presidential race. The senator withdrew after losing a series of primaries to Bush on Super Tuesday. McCain later supported his former adversary. As the GOP nominee in 2008, McCain lost to Obama. In McCain's concession speech at the Arizona Biltmore, he graciously spoke of the significance of Obama's win, as the first African-American to hold the presidency.

People leave the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018, following a memorial service for Sen. John McCain, R-Ariz. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

The casket of Sen. John McCain, R-Ariz., followed by family members, is carried out of Washington National Cathedral in Washington , Saturday, Sept. 1, 2018, following a memorial service. McCain died Aug. 25 from brain cancer at age 81.(AP Photo/Manuel Balce Ceneta) Manuel Balce Ceneta, AP

9/1/18 12:41:34 PM -- Washington, DC, U.S.A -- Members of the McCain family leave the memorial service for John McCain at the National Cathedral in Washington on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

Jimmy McCain puts his arm around his mother Cindy McCain, and as other family members watch as McCain's casket is taken from the cathedral following a memorial service for Sen. John McCain at the Washington National Cathedral in Washington, Sept. 1, 2018. Manuel Balce Ceneta/Associated Press

The family of Sen. John McCain, R-Ariz., follows as his casket is carried at the end of a memorial service at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

The family of Sen. John McCain, R-Ariz., follow as the casket is carried during the recessional at the end of a memorial service at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

The family of Sen. John McCain, R-Ariz., follows as his casket is carried during the recessional at the end of a memorial service at Washington National Cathedral in Washington Sept. 1, 2018. Pablo Martinez Monsivais/Pool

The family of Sen. John McCain, R-Ariz., follows as his casket is carried during the recessional at the end of a memorial service at Washington National Cathedral in Washington Sept. 1, 2018. Pablo Martinez Monsivais/Pool

The family of Sen. John McCain, R-Ariz., follows as his casket is carried during the recessional at the end of a memorial service at Washington National Cathedral in Washington Sept. 1, 2018. Pablo Martinez Monsivais/Pool

9/1/18 12:35:07 PM -- Washington, DC, U.S.A -- Former Presidents George W. Bush and Barack Obama watch the casket of Senator John McCain depart at the conclusion of the memorial service for John McCain at the National Cathedral in Washington on Sept. 1, 2018. Sen. McCain on Aug. 25. -- Photo by Jack Gruber, USA TODAY Staff Jack Gruber, USAT

The casket of Sen. John McCain, R-Ariz., is blessed at the end of a memorial service at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

The choir sings at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Sen. Lindsey Graham, R-S.C., is escorted to his seat after reading scripture at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Barack Obama pauses as he speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Barack Obama speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Barack Obama speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Barack Obama speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Barack Obama speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Barack Obama speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Barack Obama prepares to speak at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President George W. Bush speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President George W. Bush speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

President Trump's attorney Rudy Giuliani, second from right, talks with Ukrainian boxing champ Wladimir Klitschko, second from left, as they arrive to attend a memorial service for Sen. John McCain, R-Ariz., at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

Former Secretary of State Henry Kissinger speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former Secretary of State Henry Kissinger speaks at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. Pablo Martinez Monsivais/Pool

Former Secretary of State Henry Kissinger is escorted to speak at a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

From left, former President George W. Bush, former first lady Laura Bush, former President Bill Clinton, former Secretary of State Hillary Clinton, former Vice President Dick Cheney and his wife Lynne and former Vice President Al Gore participate in a memorial service for Sen. John McCain, R-Ariz., at Washington Nationals Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Visitors leave posters at the Vietnam Veterans Memorial after Cindy McCain, wife of, Sen. John McCain, R-Ariz., placed a wreath, Saturday, Sept. 1, 2018, in Washington, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. Andrew Harnik/AP

The American fag remains at half-staff over the White House in honor of the late Sen. John McCain, R- Ariz., in Washington, Saturday, Sept. 1, 2018. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

A man brings an American flag to the Vietnam Veterans Memorial after Cindy McCain, wife of Sen. John McCain, R-Ariz., placed a wreath, Saturday, Sept. 1, 2018, in Washington, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Visitors crowd the Vietnam Veterans Memorial after Cindy McCain, wife of, Sen. John McCain, R-Ariz., placed a wreath, Saturday, Sept. 1, 2018, in Washington, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Visitors crowd the Vietnam Veterans Memorial after Cindy McCain, wife of, Sen. John McCain, R-Ariz., placed a wreath, Saturday, Sept. 1, 2018, in Washington, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Visitors crowd the Vietnam Veterans Memorial after Cindy McCain, wife of Sen. John McCain, R-Ariz., placed a wreath, Saturday, Sept. 1, 2018, in Washington, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Eliana Duy, 8, of Fla., poses for a photo at the Vietnam Veterans Memorial after Cindy McCain, wife of, Sen. John McCain, R-Ariz., placed a wreath, Saturday, Sept. 1, 2018, in Washington, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Meghan McCain walks from the podium after speaking at a memorial service for her father, Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

9/1/18 10:09:46 AM -- Washington, DC, U.S.A -- Cindy McCain arrives with with the casket of Senator John McCain during the memorial service for John McCain at the National Cathedral in Washington on Sept. 1, 2018. Sen. McCain on Aug. 25. -- Photo by Jack Gruber, USA TODAY Staff Jack Gruber, USAT

Cindy McCain arrives at a memorial service for her husband, Sen. John McCain, R-Ariz., at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. Watching in the front row from left are President George W. Bush, former first lady Laura Bush, former President Bill Clinton, former Secretary of State Hillary Clinton, former Vice President Dick Cheney and his wife Lynne. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Cindy McCain greets, from left, former President George W. Bush, former first lady Laura Bush, former President Bill Clinton, former Secretary of State Hillary Clinton, former vice president Dick Cheney and his wife Lynne at a memorial service for Sen. John McCain, R-Ariz., at Washington Nationals Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

9/1/18 10:33:38 AM -- Washington, DC, U.S.A -- President Barack Obama and Michelle Obama arrive with President George Bush and Laura Bush along with Hillary Clinton and President Bill Clinton at the memorial service for John McCain at the National Cathedral in Washington on Sept. 1, 2018. Sen. McCain on Aug. 25. -- Photo by Jack Gruber, USA TODAY Staff USAT

Front from left, former Defense Secretary William Cohen, former New York Mayor Michael Bloomberg and former Vice President Joe Biden listen during a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. Back row, second from right is former Texas Senator Phil Gramm and third from left is former Wisconsin Sen. Russ Feingold. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

From left, former President Bill Clinton, former Secretary of State Hillary Clinton, former vice president Dick Cheney and his wife Lynne and former vice president Al Gore attend at a memorial service for Sen. John McCain, R-Ariz., at Washington Nationals Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Jay Leno, center, meets with other dignitaries and invited guests as he attends a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Barack Obama, center, and former first lady Michelle Obama, right, arrive with other dignitaries and invited guests to attend a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. On the far left is former Vice President Al Gore. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former President Bill Clinton, right, greets former Vice President Al Gore, left, as they arrive with other dignitaries and invited guests to attend a memorial service for Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25, from brain cancer at age 81. (AP Photo/Pablo Martinez Monsivais) Pablo Martinez Monsivais, AP

Former Vice President Joe Biden, second from right, and actor Warren Beatty, right, wait to escort the casket of Sen. John McCain, R-Ariz., at Washington National Cathedral in Washington, Saturday, Sept. 1, 2018, for a memorial service. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

The family of Sen. John McCain, R-Ariz., including from left, Andrew McCain, Doug McCain, second from left, Meghan McCain, from front row left, Bridget McCain, Cindy McCain, Jimmy McCain and Jack McCain, watch as the casket is carried down the steps of the U.S. Capitol in Washington, Saturday, Sept. 1, 2018, in Washington, for a departure to the Washington National Cathedral for a memorial service. (Marvin Joseph/The Washington Post via AP, Pool) Marvin Joseph, AP

9/1/18 9:41:33 AM -- Washington, DC, U.S.A -- Members of the McCain family watch as John McCainÕs casket is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

From left, Meghan McCain, Cindy McCain, Jimmy McCain and his wife Holly pause as they watch the casket of Sen. John McCain, R-Ariz., arrive at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018, for a memorial service. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

The casket of Sen. John McCain, R-Ariz., arrives at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018, for a memorial service. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

9/1/18 9:00:09 AM -- Washington, DC, U.S.A -- Former Vice President Joe Biden arrives at the National Cathedral in Washington for a memorial service for her son, John McCain, on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:26:33 AM -- Washington, DC, U.S.A -- Members of a military honor guard team await the arrival of John McCain's casket at the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

The family of Sen. John McCain, R-Ariz., gather near his casket arrives on the steps of the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018, during a memorial service. (AP Photo/Manuel Balce Ceneta) Manuel Balce Ceneta, AP

9/1/18 9:21:59 AM -- Washington, DC, U.S.A -- Members of a military honor guard team await the arrival of John McCain's casket at the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:21:59 AM -- Washington, DC, U.S.A -- Members of a military honor guard team await the arrival of John McCain's casket at the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:43:14 AM -- Washington, DC, U.S.A -- A piece of plastic falls to the ground as the flag-draped casket bearing John McCain is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:43:22 AM -- Washington, DC, U.S.A -- A piece of plastic falls to the ground as the flag-draped casket bearing John McCain is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25 -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:46:00 AM -- Washington, DC, U.S.A -- Members of the McCain family watch as John McCainÕs casket is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

Rhonda Zuck, left, and her husband, Tim Zuck, center, who both served in the U.S. Army, drove from Racine, Wis., for the wreath laying ceremony for Sen. John McCain, R-Ariz., at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018. (Ray Whitehouse/Pool photo via AP) Ray Whitehouse, AP

The casket of Sen. John McCain, R-Ariz., is carried to a hearse from the U.S. Capitol in Washington, Saturday, Sept. 1, 2018, in Washington, for a departure to the Washington National Cathedral for a memorial service. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Jose Luis Magana) Jose Luis Magana, AP

The casket of Sen. John McCain, R-Ariz., is carried to a hearse from the U.S. Capitol in Washington, Saturday, Sept. 1, 2018, in Washington, for a departure to the Washington National Cathedral for a memorial service. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Jose Luis Magana) Jose Luis Magana, AP

9/1/18 9:42:14 AM -- Washington, DC, U.S.A -- Members of the McCain family watch as John McCainÕs casket is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:42:32 AM -- Washington, DC, U.S.A -- Members of the McCain family watch as John McCainÕs casket is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:47:18 AM -- Washington, DC, U.S.A -- Members of the McCain family watch as John McCainÕs casket is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:46:56 AM -- Washington, DC, U.S.A -- Members of the McCain family watch as John McCainÕs casket is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:48:15 AM -- Washington, DC, U.S.A -- Members of the McCain family watch as John McCainÕs casket is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:41:10 AM -- Washington, DC, U.S.A -- The McCain family arrives at the National Cathedral in Washington for a memorial service for John McCain on Sept. 1, 2018. Sen. McCain on Aug. 25. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:41:39 AM -- Washington, DC, U.S.A -- Members of the McCain family watch as John McCainÕs casket is carried into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:43:00 AM -- Washington, DC, U.S.A -- Members of the McCain family leave the memorial service for John McCain at the National Cathedral in Washington on Sept. 1, 2018. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

9/1/18 9:41:48 AM -- Washington, DC, U.S.A -- The flag-draped casket bearing John McCain is pulled out of the hears into the National Cathedral in Washington for a memorial service on Sept. 1, 2018. Sen. McCain on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

Police officers salute as the casket of Sen. John McCain, R-Ariz., arrives at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018, for a memorial service. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

Former Secretary of State Madeleine Albright, center, arrives to attend a memorial service for Sen. John McCain, R-Ariz., at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

Holly Knowlton, left, and her husband retired Gen. David Petraeus, right, arrive to attend a memorial service for Sen. John McCain, R-Ariz., at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

A crowd gathers before Cindy McCain, wife of, Sen. John McCain, R-Ariz., arrives to lay a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a memorial service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Former Secretary of State Madeleine Albright arrives for a memorial service for Sen. John McCain, R-Ariz., at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. (AP Photo/Manuel Balce Ceneta) Manuel Balce Ceneta, AP

A crowd gathers before Cindy McCain, wife of, Sen. John McCain, R-Ariz., arrives to lay a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a memorial service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Jay Leno arrives at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018, for a memorial service for Sen. John McCain, R-Ariz. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

Cindy McCain, wife of, Sen. John McCain, R-Ariz., accompanied by President Donald Trump's Chief of Staff John Kelly, left, and Defense Secretary Jim Mattis, second from left, lays a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

The family of Sen. John McCain, R-Ariz., front row from left, Meghan McCain, Bridget McCain and Cindy McCain, watches as his casket is carried to a hearse from the U.S. Capitol in Washington, Saturday, Sept. 1, 2018, in Washington, for a departure to the Washington National Cathedral for a memorial service. (Jim Lo Scalzo/Pool Photo via AP) Jim Lo Scalzo, AP

Former Secretary of State John Kerry arrives for a memorial service for Sen. John McCain, R-Ariz., at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

Navy Lt. Jack McCain, the son of, Sen. John McCain, R-Ariz., is reflected in the wall of the Vietnam Memorial as Jack's mother, Cindy McCain, accompanied by Defense Secretary Jim Mattis, right, and President Donald Trump's Chief of Staff John Kelly, left, departs after laying a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Cindy McCain, wife of Sen. John McCain, R-Ariz., center, accompanied by President Donald Trump's Chief of Staff John Kelly, right, Defense Secretary Jim Mattis, second from left, and family members, arrives at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Cindy McCain, wife of, Sen. John McCain, R-Ariz., accompanied by White House Chief of Staff John Kelly, left, and Defense Secretary Jim Mattis, second from left, lays a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Cindy McCain, wife of, Sen. John McCain, R-Ariz., lays a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Bridget McCain and Meghan McCain, daughters of, Sen. John McCain, R-Ariz., watch as Cindy McCain, lays a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Cindy McCain, wife of, Sen. John McCain, R-Ariz., holds a tissue as she arrives to lay a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Family members of Sen. John McCain, R-Ariz., watch as his wife, Cindy McCain, right, accompanied by White House Chief of Staff John Kelly, third from right, and Defense Secretary Jim Mattis, second from right, lays a wreath at the Vietnam Veterans Memorial in Washington, Saturday, Sept. 1, 2018, during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

A military honor guard team places the casket of Sen. John McCain, R-Ariz., into a waiting hearse at the U.S. Capitol, Saturday, Sept. 1, 2018 in Washington. (Win McNamee/Pool photo via AP) Win McNamee, AP

Sen. Sheldon Whitehouse, D-R.I., right, goes through security as he arrives to attend a memorial service for Sen. John McCain, R-Ariz., at the Washington National Cathedral in Washington, Saturday, Sept. 1, 2018. McCain died Aug. 25 from brain cancer at age 81. (AP Photo/Susan Walsh) Susan Walsh, AP

John Kerry and Kamala Harris share a moment before the National Cathedral in Washington for a memorial service for John McCain on Sept. 1, 2018. Sen. McCain on Sept. 1, 2018. Sen. McCain on Aug. 25. USA TODAY

View from the press section in the South Balcony inside the Washington National Cathedral on Sept. 1, 2018, less than two hours before the memorial service for U.S. Sen. John McCain. Dan Nowicki/The Republic

The POW/MIA Chair of Honor is displayed in the Capitol Visitors Center as Sen. John McCain, R-Ariz., lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. Andrew Harnik/AP

The casket of Sen. John McCain, R-Ariz., is carried down the steps of the U.S. Capitol in Washington, Saturday, Sept. 1, 2018, in Washington, for a departure to the Washington National Cathedral for a memorial service. (Marvin Joseph/The Washington Post via AP, Pool) Marvin Joseph/Washington Post via AP

McCain, who choreographed his own funeral months in advance, also championed bi-partisanship. To that end, House Speaker Paul Ryan sat with Minority Leader Nancy Pelosi, and Senate Majority Leader Mitch McConnell was seated near Minority Leader Chuck Schumer. Democrat John Kerry, a former secretary of State, Senate colleague and Vietnam veteran, also attended. The two worked together to help normalize relations with Vietnam.

The guest list featured a host of foreign dignitaries, including Ukrainian President Petro Poroshenko, Panamanian President Juan Carlos Varela, and the current and former secretaries general of NATO. Expected attendees also included representatives from Canada, Latvia, Lithuania, Estonia, Germany and Taiwan.

McCain had been an outspoken advocate of Ukraine and regularly assailed Russia for its annexation of Crimea and fomenting dissent there. As well, McCain was a champion of NATO, in contrast with Trump who has regularly bashed it.

On some of the jabs taken during the ceremony, he said: “Everyone has emotions. This is a day that they get expressed. I thought, overall, it was very appropriate.”

Before the service, McCain's family gathered in front of the U.S. Capitol as military service members carried McCain's casket down the steps to a waiting hearse. The motorcade carrying the senator's body from the U.S. Capitol departed the Capitol shortly after 8:40 a.m.

The vehicles passed in front of the White House. Trump, who pointedly was not invited to any of the events in the three days honoring McCain, had feuded frequently with the senator.

Roberta McCain, 106, takes a moment at the casket of her son, Sen. John McCain, after a memorial service in the Rotunda of the U.S. Capitol, where he lay in state Aug. 31, 2018.(Photo: EPA-EFE)

At the White House, during McCain's service, the president spent the day like any other Saturday with a series of critical tweets. Then, during McCain’s service, shortly after 10:30 a.m., Trump's motorcade left the White House and arrived at Trump National Golf Club in Loudoun County, Virginia. He was wearing a white short-sleeved shirt and white Make America Great Again hat.

Meghan McCain sobbed and leaned on her sister Bridget. A ribbon wrapped the wreath bearing the words, In Memory of All Who Served.

Cindy McCain, wife of, Sen. John McCain, R-Ariz., lays a wreath at the Vietnam Veterans Memorial in Washington, during a funeral procession to carry the casket of her husband from the US Capitol to National Cathedral for a Memorial Service.(Photo: Andrew Harnik, EPA-EFE)

Veterans, families and signs of support filled the area around the iconic black wall at the memorial site. Some embraced and held back tears while others just passed through on a Saturday morning run. McCain, a Navy pilot, was held prisoner in North Vietnam for more than five years.

Shirley Whiteaker of Knoxville said she came to Washington after she heard news of McCain's death to show support for his wife Cindy McCain and her family.

"They have done so much for this country," she said of the entire McCain family.

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Cindy McCain, wife of Sen. John McCain, watches her husband's casket arrive at the U.S. Capitol as their two sons Jack and Jimmy McCain salute at the U.S. Capitol in Washington on Aug. 31, 2018. Jack Gruber/USA TODAY

The casket of Sen. John McCain arrives at the U.S. Capitol while his wife, Cindy McCain, along with their two sons Jack and Jimmy McCain, look on at the U.S. Capital in Washington on Aug. 31, 2018. Jack Gruber/USA TODAY

Senate Majority Leader Mitch McConnell of Kentucky, accompanied by an aide, walks through the rotunda before the casket of Sen. John McCain, R-Ariz., lies in state at the U.S. Capitol Aug. 31, 2018. Andrew Harnik/Pool

Sen. John McCain's daughter Meghan McCain is comforted by her 106-year-old grandmother Roberta McCain during a memorial at the U.S. Capitol rotunda Aug. 31, 2018, in Washington. J. Scott Applewhite/Pool

8/31/18 11:16:56 AM -- Washington, DC, U.S.A -- Vice President Mike Pence greets the McCain family as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

8/31/18 11:02:40 AM -- Washington, DC, U.S.A -- Speaker of the House Paul Ryan speaks as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

Cindy McCain, wife of Sen. John McCain, R-Ariz., right, talks with Vice President Mike Pence, left, after he speaks at a ceremony for John McCain as he lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik, Pool) Andrew Harnik, AP

Cindy McCain, wife of Sen. John McCain, R-Ariz., leans on his flag-draped casket during a farewell ceremony in the U.S. Capitol rotunda, Friday, Aug. 31, 2018, in Washington. McCain was a six-term senator, a former Republican nominee for president, and a Navy pilot who served in Vietnam, where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

8/31/18 12:26:28 PM -- Washington, DC, U.S.A -- The body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:25:12 AM -- Washington, DC, U.S.A -- Sidney McCain whisper to her father's casket as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

8/31/18 11:25:19 AM -- Washington, DC, U.S.A -- Jimmy McCain leans on his father's casket as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff Jasper Colt, USAT

8/31/18 11:19:10 AM -- Washington, DC, U.S.A -- House leaders Nancy Pelosi and Paul Ryan present a wreath as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:17:41 AM -- Washington, DC, U.S.A -- A wreath is presented by the U.S. Senate as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:44:48 AM -- Washington, DC, U.S.A -- The body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:20:26 AM -- Washington, DC, U.S.A -- Vice President Mike Pence and his wife Karen present a wreath on behalf of the Executive Branch as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:27:56 AM -- Washington, DC, U.S.A -- The body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:28:16 AM -- Washington, DC, U.S.A -- Henry Kissinger pays his respects as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:33:18 AM -- Washington, DC, U.S.A -- The body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:34:31 AM -- Washington, DC, U.S.A -- The body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

8/31/18 11:35:27 AM -- Washington, DC, U.S.A -- Lindsey Grahama pays his respects as the body of John McCain lies in state at the U.S. Capitol in Washington on Aug. 31, 2018 in Washington. Sen. McCain died on Aug. 25. -- Photo by Jasper Colt, USA TODAY Staff USAT

Former Secretary of State Henry Kissinger pays his respects at the flag-draped casket of Sen. John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda, Friday, Aug. 31, 2018, in Washington. McCain was a six-term senator, a former Republican nominee for president, and a Navy pilot who served in Vietnam, where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Sen. Joe Lieberman, right, and his wife Hadassah Lieberman, pay their respects at the flag-draped casket of Sen. John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda, Friday, Aug. 31, 2018, in Washington. McCain was a six-term senator, a former Republican nominee for president, and a Navy pilot who served in Vietnam, where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Attorney General Jeff Sessions passes by the flag-draped casket of Sen. John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda, Friday, Aug. 31, 2018, in Washington. McCain was a six-term senator, a former Republican nominee for president, and a Navy pilot who served in Vietnam, where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Former New York Mayor Rudy Giuliani, who currently serves as attorney to President Donald Trump, pays his respects at the flag-draped casket of Sen. John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda, Friday, Aug. 31, 2018, in Washington. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Ohio Gov. John Kasich kneels at the flag-draped casket of Sen. John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda, Friday, Aug. 31, 2018, in Washington. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Ohio Gov. John Kasich kneels at the flag-draped casket of Sen. John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda, Friday, Aug. 31, 2018, in Washington. McCain was a six-term senator, a former Republican nominee for president, and a Navy pilot who served in Vietnam, where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Senate Minority Leader Chuck Schumer, D-N.Y., center, and other members of the Senate, stand as the flag-draped casket bearing the remains of Sen. John McCain of Arizona, lies in state in the U.S. Capitol rotunda for a farewell ceremony and public visitation, Friday, Aug. 31, 2018, in Washington. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Senate Minority Leader Chuck Schumer, D-N.Y., center, and other members of the Senate, stand as the flag-draped casket bearing the remains of Sen. John McCain of Arizona, lies in state in the U.S. Capitol rotunda for a farewell ceremony and public visitation, Friday, Aug. 31, 2018, in Washington. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Members of the public watch as Supreme Court Justice Sonia Sotomayor stands over the casket of Sen. John McCain, R-Ariz., as he lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Members of the public pay their respects as Sen. John McCain, R-Ariz., lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Attorney General Jeff Sessions walks out of the Rotunda where Sen. John McCain, R-Ariz., lies in state in the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

A man wearing a shirt that reads "Trump is Persona Non Grata" walks through the Rotunda as Sen. John McCain, R-Ariz., lies in state in the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Members of the public pay their respects as Sen. John McCain, R-Ariz., lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Members of the public pay their respects as Sen. John McCain, R-Ariz., lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Members of the public file through the U.S. Capitol Rotunda as pay their respects to Sen. John McCain, R-Ariz., as he lies in state Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Derek Anderson (center) of Arlington, Virginia, pays his respects with other members of the public at the flag-draped casket of Sen. John McCain of Arizona in the U.S. Capitol rotunda in Washington Aug. 31, 2018. J. Scott Applewhite/Pool

Members of the public walk past the flag-draped casket bearing the remains of John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda in Washington, Friday, Aug. 31, 2018. McCain was a six-term senator from Arizona, a former Republican nominee for president, and a Navy pilot who served in Vietnam where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Members of the public walk past the flag-draped casket bearing the remains of John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda in Washington, Friday, Aug. 31, 2018. McCain was a six-term senator from Arizona, a former Republican nominee for president, and a Navy pilot who served in Vietnam where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Members of the public walk past the flag-draped casket bearing the remains of John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda in Washington, Friday, Aug. 31, 2018. McCain was a six-term senator from Arizona, a former Republican nominee for president, and a Navy pilot who served in Vietnam where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Members of the public walk past the flag-draped casket bearing the remains of John McCain of Arizona, who lived and worked in Congress over four decades, in the U.S. Capitol rotunda in Washington, Friday, Aug. 31, 2018. McCain was a six-term senator from Arizona, a former Republican nominee for president, and a Navy pilot who served in Vietnam where he endured five-and-a-half years as a prisoner of war. He died Aug. 25 from brain cancer at age 81. (AP Photo/J. Scott Applewhite) J. Scott Applewhite, AP

Members of the public come to pay their respects as Sen. John McCain, R-Ariz., lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

A visitor becomes emotional while paying respects to Sen. John McCain, R-Ariz., as McCain lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

President Barack Obama's White House Chief of Staff Denis McDonough, center right, walks through the Rotunda as Sen. John McCain, R-Ariz., lies in state at the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

A visitor becomes emotional while paying respects to Sen. John McCain, R-Ariz., as he lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP

Sen. Shelley Moore Capito, R-W.Va., left, and her husband Charles Capito pay their respects to Sen. John McCain, R-Ariz., as he lies in state in the Rotunda of the U.S. Capitol, Friday, Aug. 31, 2018, in Washington. (AP Photo/Andrew Harnik) Andrew Harnik, AP